BioStacks
GNC

TriFlex Joint Support Fast-Acting

4 Caplets · 60 servings · $1.17/serving

iHerbAmazon

Best for

Bone & Joint

Ingredients (6)

ApresFlex Boswellia serrata gum extract

100%

Dose

100 mg

Target

100–250 mg

Form

Premium

Glucosamine Hydrochloride

100%

Dose

1500 mg

Target

1000–1500 mg

Form

Premium

Chondroitin Sulfate, Sodium

100%

Dose

1200 mg

Target

800–1200 mg

Form

Standard

Turmeric root extract

21%

Dose

105 mg

Target

500–1500 mg

Form

Standard

3-0-Acetyl-11-Keto Beta Boswellic Acid

7%

Dose

20 mg

Target

300–1200 mg

Form

—

Nutrition

Calories, macros & sodium.

  • Sodium130 mg

Other Ingredients (8)

TalcAnti-caking

IARC classifies cosmetic-grade talc not containing asbestos as Group 2B (possibly carcinogenic to humans); perineal talc use as Group 2A (probably carcinogenic). Johnson & Johnson voluntarily withdrew talc-based baby powder from US/Canada in 2020 and globally in 2022 after extensive litigation tied to ovarian-cancer and mesothelioma cases. The 2018 FDA contamination survey found asbestos in 9 of 52 cosmetic talc products tested. As a supplement excipient talc is a pure manufacturing convenience — no nutritional or functional benefit to the user — so the asbestos-exposure risk has no offsetting upside. Safer alternatives (silicon dioxide, microcrystalline cellulose, rice hulls) are widely available.

Titanium DioxideColorant

Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Polyethylene Glycol (Coating)Coating

A polyether polymer used as a tablet coating and plasticizer

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

CrospovidoneDisintegrant

Cross-linked synthetic polymer used as a tablet disintegrant to help tablets break apart quickly in the stomach

Riboflavin-5-PhosphateColorant

Active coenzyme form of vitamin B2; used as yellow colorant and for B2 fortification in supplements

How to Take It

Take it anytime

What's in this absorbs poorly without a fat-containing meal — take it with one.

With a meal containing fat

On the label

As a dietary supplement, take two caplets twice daily, preferably with meals.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$69.99

$10$20$50

Pricier than 99% of 37 boswellia serrata extract supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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